Sorry if I'm insulting you, but I really don't care for tattoos. Like others have said, they are permanent. Old people with tattoos are really nasty looking especially if they have their whole arm or something as a 'canvas.'
If you don't already have a tattoo, I wouldn't recommend it. If you are already into it, maybe get something smaller in a less noticeable place.
Btw if you aren't already employed at your "career job" and are looking to apply for a position in the future, many employers won't be happy if they can see your neck tattoo.
One last thing... If you aren't married and straight, most potential mother-in-laws won't approve of your body art.